| Rapid City to Cibolo (Texas) | 1,039.46 mi (1,672.85 km) |
| Rapid City to Cicero (Illinois) | 795.55 mi (1,280.31 km) |
| Rapid City to Cimarron Hills (Colorado) | 368.14 mi (592.47 km) |
| Rapid City to Cincinnati (Ohio) | 1,022.35 mi (1,645.31 km) |
| Rapid City to Cinco Ranch (Texas) | 1,071.44 mi (1,724.31 km) |
| Rapid City to Circleville (Ohio) | 1,085.71 mi (1,747.28 km) |
| Rapid City to Citrus (California) | 1,042.06 mi (1,677.04 km) |
| Rapid City to Citrus Heights (California) | 1,004.98 mi (1,617.35 km) |
| Rapid City to Citrus Park (Florida) | 1,589.10 mi (2,557.41 km) |
| Rapid City to Claiborne (Louisiana) | 994.14 mi (1,599.91 km) |
| Rapid City to Claremont (California) | 1,034.64 mi (1,665.09 km) |
| Rapid City to Claremont (New Hampshire) | 1,533.72 mi (2,468.29 km) |
| Rapid City to Claremore (Oklahoma) | 669.13 mi (1,076.86 km) |
| Rapid City to Clarksburg (Maryland) | 1,374.96 mi (2,212.78 km) |
| Rapid City to Clarksburg (West Virginia) | 1,222.49 mi (1,967.41 km) |
